HP 3000 Manuals

HP SPT/XL User's Manual: Analysis Software

Code File Sample Summary 

One of the ways HP SPT/XL monitors an application is to sample frequently
the instruction address where the application is executing.  This screen
presents these samples for the specified program or executable library
file during the active transaction.  See "Collecting Data" in chapter 1
for more information.

You would typically use these screens in analyzing an application's time
spent in user or application code.

Each line on the display represents a code file in which HP SPT/XL found
the monitored process executing.  Each user code file is assigned an
index number, displayed to the left of the file name, which may be used
to access more detailed sampling information by selecting  FileSmpl 
Profile.

Index numbers are displayed for code files only if procedure names are
available for that file.  Therefore, indexes will only appear for
NL.PUB.SYS and XL.PUB.SYS if the SYSPROCNAMES data collection option was
enabled during data collection.  See the HP SPT/XL User's Manual: 
Collection Software for details of this option.  If an index does not
appear for another code file, procedure names could not be collected for
that file.

In the screen in Figure 5-2, you are looking for a large number in the
sample count field.  This identifies which user file contains the largest
number of samples, and, as a result, where most of the time was spent.


          Figure 5-2.  Code File Sample Summary 

Screen Definitions 

# Code File Name          Code files sampled during this transaction.

Sampling...               Reminder that the SYSPROCNAMES option was
                          disabled during data collection.

Sample Count              Number of samples found in the code file.

% of Samples              Percentage of all samples found in this code
                          file.

% of Transaction Process  Percentage of overall transaction processing
Time                      time (estimated) spent in this file.

Histogram                 Graphic representation of the percentage of
                          overall transaction processing time spent in
                          each code file.

 FileSmpl Profile         Prompts for code file number, to go to the Code
                          File Sample Profile screen.

MPE/iX 5.0 Documentation